--- a/convert.py	Sat Aug 10 21:16:19 2024 -0700
+++ b/convert.py	Sat Aug 10 23:02:51 2024 -0700
@@ -4,6 +4,10 @@
 converters = []
 
 
+def f_from_c(c):
+    return (c * 9 / 5) + 32
+
+
 def topic(topic_pattern: str):
 
     def decorator(func):
@@ -15,8 +19,8 @@
 
 
 @topic(r'([^-]+)-air-quality/sensor/particulate_matter__10_0__m_concentration/state')
-def pm(message, topicGroups: tuple[str]):
-    return {
+def pm(message, topicGroups: tuple[str]) -> list[dict]:
+    return [{
         'name': 'air_quality_pm',
         'labels': [{
             'labelName': 'location',
@@ -26,16 +30,16 @@
             'labelValue': '10',
         }],
         'value': float(message['payload']),
-    }
+    }]
 
 
 @topic(r'([^-]+)-air-quality/sensor/air_temperature_c/state')
-def air_temp(message, topicGroups: tuple[str]):
-    return {
+def air_temp(message, topicGroups: tuple[str]) -> list[dict]:
+    return [{
         'name': 'air_temperature_f',
         'labels': [{
             'labelName': 'location',
             'labelValue': topicGroups[0],
         }],
-        'value': (float(message['payload']) * 9 / 5) + 32,
-    }
+        'value': f_from_c(float(message['payload'])),
+    }]